22 d&b Q-Series
The operation with D6 and D12 amplifiers
Operation with D6 and D12
Q1
Qi1
Q7
Qi7
Q10
Qi10
Q-SUB
QiCSA
-SUB
Qi-SUB
Max. LS
per channel
2
2
2
2
2
Max. LS per
channel in special
applications
1
3
3
3
3
3
Maximum loudspeakers per D6 or D12 channel
D6 and D12 controller settings
Q1
Qi1
Q7
Qi7
Q10
Qi10
Q-SUB
QiCSA
-SUB
Qi-SUB
CUT
x
x
x
HFC
x
HFA
x
x
CPL
x
x
x
100 Hz
x
x
CSA
x
D6 and D12 controller settings for each loudspeaker
CUT mode
Set to CUT, the cabinet low frequency level is reduced and is
configured for use with d&b active subwoofers.
HFC mode
Selecting the HFC (High Frequency Compensation) mode
compensates for loss of high frequency energy due to absorption
in air when loudspeakers are used to cover far field listening
positions. HFC should be used selectively, only for those cabinets
covering distances larger than 50 m (160 ft). This enables the
correct sound balance between close and remote audience
areas, whilst all amplifiers driving the array can be fed with the
same signal.
HFA mode
In HFA mode (High Frequency Attenuation), the HF response of
the system is rolled off. The HFA provides a natural, balanced
frequency response when a unit is placed close to listeners in near
field or delay use. High Frequency Attenuation begins gradually
at 1 kHz, dropping by approximately 3 dB at 10 kHz. This roll
off mimics the decline in frequency response experienced when
listening to a system from a distance in a typically reverberant
room or auditorium.
CPL function
The CPL (Coupling) function compensates for coupling effects
between closely coupled cabinets by reducing the low and mid
frequency level. CPL begins gradually at 1 kHz, with maximum
attenuation below 400 Hz, providing a balanced frequency
response when cabinets are used in arrays of two or more. The
CPL function can be set in dB attenuation values between –9
and 0, or a positive CPL value which creates an adjustable low
frequency boost around 65 Hz (0 to +5 dB).
100 Hz mode
If the 100 Hz mode is selected, the upper operating frequency
of the system is reduced to 100 Hz. This setting allows the
subwoofer to supplement top cabinets in full range mode.
CSA mode
CSA (Cardioid Subwoofer Array) mode enables the combination
of three or multiples of three subwoofer cabinets into an array
that produces exceptional low frequency directivity control. The
centre cabinet in a column is physically pointed to the rear and
the CSA mode selected on the D6 or D12 channel that powers
this cabinet. The forward facing cabinets are driven with a D6
or D12 channel set in the standard mode. The resulting cardioid
behaviour of the array will significantly reduce the energy
radiated to the rear. For further information please refer to the
d&b TI 330 Cardioid Subwoofer Array, which is available for
download at www.dbaudio.com.
d&b SenseDrive
The D12 incorporates d&b SenseDrive for accurate control of
LF drivers in d&b loudspeakers driven 2-Way Active or in d&b
subwoofers driven actively, resulting in an extremely precise bass
performance, even at high levels. SenseDrive is only available
using a D12 fitted with EP5 connectors and appropriate 5-wire
cabling. For further information please refer to the d&b TI 340
SenseDrive, which is available for download at www.dbaudio.com.
1
In applications with low continuous levels and low ambient temperatures
